CN208647686U - A kind of storage tank nitrogen seal device - Google Patents
A kind of storage tank nitrogen seal device Download PDFInfo
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- CN208647686U CN208647686U CN201821308739.9U CN201821308739U CN208647686U CN 208647686 U CN208647686 U CN 208647686U CN 201821308739 U CN201821308739 U CN 201821308739U CN 208647686 U CN208647686 U CN 208647686U
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Abstract
The utility model discloses a kind of storage tank nitrogen seal devices, nitrogen inlet, nitrogen outlet, pressure sensor, breather valve and safety valve including top of the tank is arranged in, nitrogen inlet is communicated with nitrogen inlet duct road, and first flow regulating valve and air intake control valve are provided on nitrogen inlet duct road；Nitrogen outlet is communicated with nitrogen out of the trachea road, and gas exhausting valve and second flow regulating valve are provided on nitrogen out of the trachea road；Breather valve is provided with gland, negative pressure valve disc, fire-proof plate, rainhat and positive pressure valve disc；Pressure sensor, air intake control valve and gas exhausting valve pass through transmission line and are connected to automatic control system.The utility model overall structure is simple, high degree of automation, and nitrogen loss is few, highly-safe.
Description
Technical field
The utility model relates to chemical equipment technical fields, and in particular to a kind of storage tank nitrogen seal device.
Background technique
In chemical production field, many materials meeting nature volatilizations, or all kinds ofization are generated after contacting with the oxygen in air
Close object, these volatile substances some with toxicity or niff, serious harm can be generated to atmospheric environment, it is mixed with air
The substance to react after conjunction can generate other compounds, or even detonation or explosion can occur, and bury security risk.To solve
The above problem, what application was most at present is inert gas shielding technology, i.e., sets its air touched in material storing container
It is changed to the inert gas (such as nitrogen and argon gas) for being difficult to react with material, while storage container being sealed, with this
Achieve the purpose that closing storage material.Since the acquisition of nitrogen is more easier and cost is relatively low compared with argon gas, in use scope
It is more universal, so inertia protection technique is also referred to as nitrogen encapsulation technique at home.
There is some defects in actual use for common nitrogen seal system, such as: automation and system integration journey
Spend it is low, cannot achieve to the operating status of storage tank it is real-time monitoring and control adjustment, start and stop storage tank nitrogen envelope must be by operator
Member opens or closes shut-off valve at the scene to realize, workload is very big；In addition breather valve sealing is bad, causes storage tank in no behaviour
The problem of nitrogen can be leaked out from breather valve when making, on the one hand will lead to the increase of nitrogen consumption, and another aspect nitrogen can entrainment
Emptying and exhaust treatment system are expected, to increase loss of material and bring difficulty to exhaust treatment system.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of storage tank nitrogen seal device, effective solution nitrogen envelope
Plant automation degree is low and breather valve loss nitrogen more than problem, overall structure is simple, high degree of automation, nitrogen loss
It is few, it is highly-safe.
In order to solve the above technical problems, the technical solution of the utility model is:
A kind of storage tank nitrogen seal device, including the nitrogen inlet of top of the tank is arranged in, nitrogen outlet, pressure sensor, exhales
Inhale valve and safety valve, nitrogen inlet and be communicated with nitrogen inlet duct road, be provided on nitrogen inlet duct road first flow regulating valve and
Air intake control valve；Nitrogen outlet is communicated with nitrogen out of the trachea road, and nitrogen out of the trachea is provided with gas exhausting valve and second on road
Adjustable valve；Breather valve is provided with gland, negative pressure valve disc, fire-proof plate, rainhat and positive pressure valve disc；Pressure sensor, air inlet control
Valve and gas exhausting valve processed pass through transmission line and are connected to automatic control system.
Preferably, the breather valve includes breathing valve chest, positive pressure valve disc, positive pressure valve seat, negative pressure valve disc, negative pressure valve
The composition such as seat, anti-explosion fire-retardant core, positive pressure valve disc and negative pressure valve disc are arranged on same axis, are equipped in breathing valve chest special
Inlet channel, the air inlet of breather valve and outlet pass through same housing and are open；Anti-explosion fire-retardant core is then mounted on breathing valve chest
Opening, center axis thereof and the central axis of positive pressure valve disc and negative pressure valve disc are at being arranged vertically；It will be prevented by center fixing bolt
Canopy and anti-explosion fire-retardant core are connected；It is close-coupled on breathing valve chest with reeded upper press cover with single ended bolt
Face.
Preferably, the safety valve is deadweight safety valve, including valve body, cover and central tube, valve body top are provided with
Valve deck, valve body are hollow tubular structure, and cover is cylinder-like structure open at one end, closed at one end, and central tube is hollow
Circular cylindrical pipe is passed through from cover center, forms oil storage tank with cover, central tube lower part is provided with connecting plate, is connected to tank body
On；The tubular edge of valve body is inserted into the oil storage tank that central tube and cover are formed, and body base is arranged to be had with the bottom of cover
Distance.
Preferably, the air intake control valve is set between first flow regulating valve and nitrogen inlet.
Preferably, the gas exhausting valve is set between second flow regulating valve and nitrogen outlet.
Preferably, the nitrogen outlet is connected to offgas duct by pipeline and gas exhausting valve, second flow regulating valve
Net.
Preferably, the storage tank nitrogen seal device further includes the temperature sensor for being set to tank interior, temperature sensor
Automatic control system is connected to by transmission line.
Preferably, the automatic control system is DCS control system.
By adopting the above-described technical solution, the beneficial effects of the utility model are:
1. the utility model can monitor the concentration of storage tank operating status in real time, by automatic control system to storage tank
Nitrogen seals the selection of the states such as start and stop, nitrogen envelope, and flexibility is stronger, and the necessary personnel of self-supporting nitrogen envelope valve is overcome to carry out start and stop nitrogen to scene
The troublesome operations such as envelope, modification pressure setting；
It, will not be with to breathe the consumption for causing nitrogen excessive 2. the utility model breather valve good airproof performance；
3. the utility model increases safety valve, guarantee the safe handling of storage tank.
In short, the utility model overall structure is simple, high degree of automation, nitrogen loss is few, highly-safe.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model breather valve structural schematic diagram；
Fig. 3 is the utility model safety valve structure schematic diagram；
In figure, 1- nitrogen inlet；2- nitrogen outlet；3- pressure sensor；4- breather valve；41- gland；42- negative pressure valve disc；
43- negative pressure valve seat；44- positive pressure valve disc；45- positive pressure valve seat；46- anti-explosion fire-retardant core；47- rain cover；48- breathes valve chest；5-
Safety valve；51- valve body；52- cover；53- central tube；54- valve deck；55- connecting plate；6- first flow regulating valve；7- air inlet control
Valve processed；8- gas exhausting valve；9- second flow regulating valve；10- automatic control system；11- tail gas pipe network.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is further described.
Embodiment one
As shown in Figure 1, Figure 2 and Figure 3, the utility model is a kind of storage tank nitrogen seal device, including top of the tank is arranged in
Nitrogen inlet 1, nitrogen outlet 2, pressure sensor 3, breather valve 4 and safety valve 5, nitrogen inlet 1 are communicated with nitrogen inlet duct road,
First flow regulating valve 6 and air intake control valve 7 are provided on nitrogen inlet duct road；Nitrogen outlet 2 is communicated with nitrogen out of the trachea road,
Gas exhausting valve 8 and second flow regulating valve 9 are provided on nitrogen out of the trachea road；Breather valve is provided with valve deck 41, negative pressure valve disc
42, fire-proof plate 43, rainhat 44 and positive pressure valve disc 45；Pressure sensor 3, air intake control valve 7 and gas exhausting valve 8 pass through biography
Defeated connection is to automatic control system 10；Nitrogen outlet is connected by pipeline and gas exhausting valve 8, second flow regulating valve 9
To tail gas pipe network 11.
Breather valve includes breathing valve chest 48, positive pressure valve disc 44, positive pressure valve seat 45, negative pressure valve disc 42, negative pressure valve seat 43, prevents
The composition such as quick-fried fire-retardant core 46, positive pressure valve disc 44 and the arrangement of negative pressure valve disc 42 on the same axis, are equipped in breathing valve chest 48
Special inlet channel, the air inlet of breather valve and outlet pass through same housing and are open (not shown)；Anti-explosion fire-retardant core 46 is then pacified
At breather valve shell nozzle, center axis thereof and the central axis of positive pressure valve disc 44 and negative pressure valve disc 42 are at being arranged vertically；
Rain cover 47 and anti-explosion fire-retardant core 46 are connected by center fixing bolt (not shown)；With reeded upper press cover 41 list
It is above that hook bolt is close-coupled at breathing valve chest 48.
Safety valve is deadweight safety valve, including valve body 51, cover 52 and central tube 53, and 51 top of valve body is provided with valve deck
54, valve body 51 is hollow tubular structure, and cover 52 is cylinder-like structure open at one end, closed at one end, during central tube 53 is
Hollow cylinder shape pipeline is passed through from 52 center of cover, forms oil storage tank with cover 52, and central tube lower part is provided with connecting plate 55, even
It is connected on tank body；The tubular edge of valve body 51 is inserted into the oil storage tank that central tube 53 and cover 52 are formed, and 51 bottom of valve body is set
Setting has distance with the bottom of cover 52.
It should be understood that these embodiments are merely to illustrate the utility model rather than limitation the scope of the utility model.This
Outer to should be understood that after reading the content taught by the present invention, those skilled in the art can make the utility model each
Kind change or modification, these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (7)
1. a kind of storage tank nitrogen seal device, it is characterised in that: nitrogen inlet, nitrogen outlet, pressure including top of the tank is arranged in
Sensor, breather valve and safety valve, the nitrogen inlet are communicated with nitrogen inlet duct road, are provided on the nitrogen inlet duct road
First flow regulating valve and air intake control valve；The nitrogen outlet is communicated with nitrogen out of the trachea road, on the nitrogen out of the trachea road
It is provided with gas exhausting valve and second flow regulating valve；The breather valve is provided with gland, negative pressure valve disc, fire-proof plate, rainhat
With positive pressure valve disc；The pressure sensor, air intake control valve and gas exhausting valve pass through transmission line and are connected to automatic control
System.
2. storage tank nitrogen seal device as described in claim 1, it is characterised in that: the breather valve includes breathing valve chest, positive pressure
The composition such as valve disc, positive pressure valve seat, negative pressure valve disc, negative pressure valve seat, anti-explosion fire-retardant core, the positive pressure valve disc and negative pressure valve disc are arranged in
On same axis, special inlet channel is equipped in breathing valve chest, the air inlet of the breather valve and outlet pass through same
Shell nozzle；The anti-explosion fire-retardant core is then mounted at breather valve shell nozzle, center axis thereof and positive pressure valve disc and negative pressure valve
The central axis of disk is at being arranged vertically；Rain cover and anti-explosion fire-retardant core are connected by center fixing bolt；With reeded
Upper press cover is close-coupled at face on breathing valve chest with single ended bolt.
3. storage tank nitrogen seal device as described in claim 1, it is characterised in that: the safety valve includes valve body, cover and center
Pipe, the valve body top are provided with valve deck, and the valve body is hollow tubular structure, and the cover is open at one end, one end
Closed cylinder-like structure, the central tube are hollow cylindrical pipeline, are passed through from cover center, form oil storage tank with cover,
The central tube lower part is provided with connecting plate, is connected on tank body；The tubular edge of the valve body is inserted into central tube and cover
In the oil storage tank of formation, distance is arranged at body base setting and the bottom of cover.
4. storage tank nitrogen seal device as described in claim 1, it is characterised in that: the air intake control valve is set to first flow tune
It saves between valve and nitrogen inlet, gas exhausting valve is set between second flow regulating valve and nitrogen outlet.
5. storage tank nitrogen seal device as described in claim 1, it is characterised in that: the nitrogen outlet passes through pipeline and gas exhaust inspecting
Valve, second flow regulating valve are connected to tail gas pipe network.
6. storage tank nitrogen seal device as described in claim 1, it is characterised in that: the storage tank nitrogen seal device further includes being set to tank
The temperature sensor in internal portion.
7. storage tank nitrogen seal device as described in claim 1, it is characterised in that: the automatic control system is DCS control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821308739.9U CN208647686U (en) | 2018-08-14 | 2018-08-14 | A kind of storage tank nitrogen seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821308739.9U CN208647686U (en) | 2018-08-14 | 2018-08-14 | A kind of storage tank nitrogen seal device |
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| CN208647686U true CN208647686U (en) | 2019-03-26 |
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| CN201821308739.9U Active CN208647686U (en) | 2018-08-14 | 2018-08-14 | A kind of storage tank nitrogen seal device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254989A (en) * | 2019-06-03 | 2019-09-20 | 广东康帝绿色生物科技有限公司 | A kind of system and its control mode for nitrogen envelope edible oil pressure inside the tank |
| CN110406831A (en) * | 2019-07-30 | 2019-11-05 | 安徽实华工程技术股份有限公司 | A kind of combined type fluid-tight detonation seal of storage tank gas-liquid equilibrium system |
| CN112027380A (en) * | 2020-08-25 | 2020-12-04 | 西北工业大学 | Storage system for metal powder and use method thereof |
| CN113511429A (en) * | 2020-04-10 | 2021-10-19 | 中国石油化工股份有限公司 | Cumene hydroperoxide storage device and storage environment adjusting method thereof |
| CN114321408A (en) * | 2022-01-04 | 2022-04-12 | 南京普瑞泰格安全设备工程有限公司 | Green energy-saving environment-friendly storage tank breather valve and use method thereof |
-
2018
- 2018-08-14 CN CN201821308739.9U patent/CN208647686U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254989A (en) * | 2019-06-03 | 2019-09-20 | 广东康帝绿色生物科技有限公司 | A kind of system and its control mode for nitrogen envelope edible oil pressure inside the tank |
| CN110406831A (en) * | 2019-07-30 | 2019-11-05 | 安徽实华工程技术股份有限公司 | A kind of combined type fluid-tight detonation seal of storage tank gas-liquid equilibrium system |
| CN113511429A (en) * | 2020-04-10 | 2021-10-19 | 中国石油化工股份有限公司 | Cumene hydroperoxide storage device and storage environment adjusting method thereof |
| CN113511429B (en) * | 2020-04-10 | 2023-01-13 | 中国石油化工股份有限公司 | Cumene hydroperoxide storage device and storage environment adjusting method thereof |
| CN112027380A (en) * | 2020-08-25 | 2020-12-04 | 西北工业大学 | Storage system for metal powder and use method thereof |
| CN114321408A (en) * | 2022-01-04 | 2022-04-12 | 南京普瑞泰格安全设备工程有限公司 | Green energy-saving environment-friendly storage tank breather valve and use method thereof |
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